may conceal
Regular verb: conceal - concealed- concealed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may conceal
you may conceal
he may conceal
we may conceal
you may conceal
they may conceal 	I may be concealing
you may be concealing
he may be concealing
we may be concealing
you may be concealing
they may be concealing	I may have concealed
you may have concealed
he may have concealed
we may have concealed
you may have concealed
they may have concealed	I may have been concealing
you may have been concealing
he may have been concealing
we may have been concealing
you may have been concealing
they may have been concealing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't conceal
you mayn't conceal
he mayn't conceal
we mayn't conceal
you mayn't conceal
they mayn't conceal 	I mayn't be concealing
you mayn't be concealing
he mayn't be concealing
we mayn't be concealing
you mayn't be concealing
they mayn't be concealing	I mayn't have concealed
you mayn't have concealed
he mayn't have concealed
we mayn't have concealed
you mayn't have concealed
they mayn't have concealed	I mayn't have been concealing
you mayn't have been concealing
he mayn't have been concealing
we mayn't have been concealing
you mayn't have been concealing
they mayn't have been concealing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I conceal?
may you conceal?
may he conceal?
may we conceal?
may you conceal?
may they conceal? 	may I be concealing?
may you be concealing?
may he be concealing?
may we be concealing?
may you be concealing?
may they be concealing? 	may I have concealed?
may you have concealed?
may he have concealed?
may we have concealed?
may you have concealed?
may they have concealed? 	may I have been concealing?
may you have been concealing?
may he have been concealing?
may we have been concealing?
may you have been concealing?
may they have been concealing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I conceal?
mayn't you conceal?
mayn't he conceal?
mayn't we conceal?
mayn't you conceal?
mayn't they conceal? 	mayn't I be concealing?
mayn't you be concealing?
mayn't he be concealing?
mayn't we be concealing?
mayn't you be concealing?
mayn't they be concealing? 	mayn't I have concealed?
mayn't you have concealed?
mayn't he have concealed?
mayn't we have concealed?
mayn't you have concealed?
mayn't they have concealed? 	mayn't I have been concealing?
mayn't you have been concealing?
mayn't he have been concealing?
mayn't we have been concealing?
mayn't you have been concealing?
mayn't they have been concealing?